[Barzanoni]

Hi every body

I have simulated a combustur, operating condition 10bar, T=600K, injected liquid kerosene, with species transport model.
at first, i solved and converged flow fild without combustion and species, then add species and converged and at the end injection and patching for combustion.

for all of the above steps, the simulation was converged, but the problems are:
1: when DPM under relaxation was changed, the mass balance varies rapidly and dont converged or hard.
2: some of the liquid kerosene droplet dont vaporize, so, the heat released from fuel are less than from what must be.
3: when boiling point of kerosene was changed, ( manually changes, remains constant, but a different from previous), mass balance on the domain goes wrong.

most of the properties of the kerosene and other species are a function of temperature.

thank you for your attantion.

[Barzanoni]

No one have any idea's??